Extendable lectern



FIG. 1 is a front perspective view of an extendable lectern showing our new design;

FIG. 2 is a right side elevational view, the left side being a mirror image thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a rear perspective view in extended position;

FIG. 8 is a front perspective view of a modified embodiment of the extendable lectern shown in FIG. 1;

FIG. 9 is a right side elevational view, the left side being a mirror image thereof;

FIG. 10 is a front elevational view thereof;

FIG. 11 is a rear elevational view thereof;

FIG. 12 is a top plan view thereof;

FIG. 13 is a bottom plan view thereof; and

FIG. 14 is a rear perspective view in extended position. 

The ornamental design for an extendable lectern, substantially as shown and described. 